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PCAT Word List # PCAT/M61

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Explanation of stem cell (noun)
form plural: stem cells

a small cavity with the potential to form many different types units

Sample of stem cell
Embryos contain lots of stem cells.
When the stem cell divides one of the two daughter cells may go on to give rise to other types of cell, whereas the other daughter cell remains a stem cell, capable of dividing again and always giving one daughter to diversification.



   
Explanation of silicon (noun)
form plural: silicons

group 1V element with the chemical symbol Si

Sample of silicon
Silicon combines with oxygen to form silicon dioxide (silica).



   
Explanation of stomach (noun)
form plural: stomachs

organ that digests food and produces hydrochloric acid

Sample of stomach
The stomach lies in the epigastrium.



   
Explanation of lateral (adjective)
forms: more lateral; most lateral; the most lateral

related to the side

Sample of lateral
A lateral view of the body is a side view.



   
Explanation of notice (verb)
forms: noticed; noticed; noticing

to observe

Sample of notice
With this exercise plan you will notice an enormous improvement in your stamina, suppleness and strength after just seven days.



   
Explanation of lysosome (noun)
form plural: lysosomes

membranous sacs that contain enzymes

Sample of lysosome
Lysosomes release their contents that help break down waste products etc.



   
Explanation of nucleoplasm (noun)
form plural: nucleoplasms

gelatinous or liquid material that constitutes the kernel of a cell

Sample of nucleoplasm
Organelles are suspended within the nucleoplasm.



   
Explanation of hypertrophy (adjective)
form plural: hypertrophies

over-development of a tissue (or part of) which leads to an increase in size and volume of the tissue

Sample of hypertrophy
Hypertrophy is a normal process in the case of the endometrium.



   
Explanation of tremor (noun)
form plural: tremors

small but uncontrolled shaking movements of a part of the body

Sample of tremor
Ethanol can induce a tremor in some people.



   
Explanation of helium (noun)
form: no plural

first member of group V111; a noble gas

Sample of helium
Helium is the second commonest element; hydrogen is the most common.
Hydrogen, helium and methane would not condense to form cloud particles at the pressures and temperatures through the cloud regions and therefore their relative abundances apply throughout the atmosphere.



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